Visitors hold up one-litre glasses of beer to kick off the 2016 Oktoberfest beer festival in the Hofbraeu tent at Theresienwiese on September 17, 2016 in Munich, Germany. The 2016 Oktoberfest is taking place under heightened security due to fears over international terrorism. The fest will be open to the public through October 3. (Photo by Johannes Simon/Getty Images)
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